So you'd prefer a BOM for your nuclear power station controller with mostly proprietary vendor-specific parts which are obsolete after 2 years, impossible to re

So you'd prefer a BOM for your nuclear power station controller with mostly proprietary vendor-specific parts which are obsolete after 2 years, impossible to replace or find maintenance stock for and under layers of NDAs and crappy documentation? That's the last 20 years. Or would you prefer a PDP11 made out of COTS parts (most are discrete in a basic PDP11), fully documented both hardware and software wise? "Crap my register file is suddenly losing data". Oh ok, dig out docs, look up fault diagnostics, ok bit 3 has failed, says replace TR23, TR24 in that flip flop, test it, wham it back in, sorted. Versus, throw the part away, dig around all used semiconductor resellers, pay a premium, find out it's some shitty chinese clone that doesn't work or has just been relabelled, bash your head on the wall and hire a consultant to design the entire system module from scratch again. Hmm.